You have entered the world of the “not so spineless invertebrates”. Typically invertebrates have no backbone. The Tunicata, commonly referred to as Tunicates, are among the highest of the invertebrates because they constitute a subphylum of the phylum Chordata (animals with a notochord or backbone). This classification is justified because they exhibit a notochord during their larval stage that is used for swimming to find their ideal habitat. Once the habitat is found, the animal attaches and settles and as the animal develops into adulthood the notochord is reabsorbed and the notochord shrinks down to a simple ganglion. The name “tunicate” comes from the animal’s outer covering called the tunic. There are no freshwater species of tunicates, all are marine. Tunicates are filter feeders, meaning that they rely on water current for food or nutrients. There are benthic tunicates (those that attach) and pelagic tunicates (the free swimmers). The two types of benthic tunicates are solitary and colonial (several individuals sharing a tunic). Tunicates come in various colors; some individuals are quite striking in life. ... [Information of the supplier]
This key was designed to be easy-to-use and accessible to a diverse audience. As such, I have focused on describing gross morphology and external features as much as possible. Biologists searching for more detailed information on internal anatomy should consult the references listed at the bottom of each species description page. In some cases it is necessary to observe internal anatomy to make an identification. Following proper narcotisation and preservation some organisms will need to be dissected. For solitary and social tunicates, begin by cutting from the oral siphon towards the base until the tunicate opens like a book. Cut through the tunic, the body wall, and the pharynx, but carefully avoid the digestive and reproductive tracts. Remove the pharynx from the tunic (i.e., sever the pharynx from the digestive tract). Zooids and internal anatomy of colonial species can be observed by dislodging zooids from the tunic, either by prodding the colony surface or by cutting the colony parallel to the long axis of the zooids. ... [Information of the supplier]
The major mission of the ISVM is to organize the ICVM, the International Congress of Vertebrate Morphology. The ICVM has emerged as the premier conference for scientists researching the morphology of vertebrate animals at all levels of organization. The Congresses are held typically every three years, and their broad goal is to provide an opportunity for interaction, integration, and interfacing. Through a mixture of symposia, workshops, and open platform and poster sessions, everyone from senior scholars to students share ideas in an informal and genial setting. ... [Information of the supplier]
The major mission of the ISVM is to organize the ICVM, the International Congress of Vertebrate Morphology. The ICVM has emerged as the premier conference for scientists researching the morphology of vertebrate animals at all levels of organization. The Congresses are held typically every three years, and their broad goal is to provide an opportunity for interaction, integration, and interfacing. Through a mixture of symposia, workshops, and open platform and poster sessions, everyone from senior scholars to students share ideas in an informal and genial setting. ... [Information of the supplier]
VertNet is a collaborative project funded by the National Science Foundation that aims to make biodiversity data free and openly accessible on the web from publishers worldwide. Partners include the University of California Berkeley, the University of Colorado, Kansas University, and Tulane University, in collaboration with over 165 publishers representing 388 natural history and paleontological collections. We have over 8 million records from 98 collections shared by 45 publishers. A full text search interface features advanced search with support for complex queries containing exact phrases, OR, NOT, keywords, date ranges, record type, user specified sort order, and filters for media and tissues. We also added spatial search which allows you to find occurrences within a user-resizable point radius on the map. ... [Information of the supplier]
The upcoming congress of the International Society of Vertebrate Morphology, to be held in the Prague, from July 21-25, 2019. The website will be expanded as ICVM12 approaches – with more details on registration, abstract submission, hotel and travel information, etc. [Information of the supplier, modified]
Completed in 2003, the Human Genome Project (HGP) was a 13-year project coordinated by the U.S. Department of Energy and the National Institutes of Health. During the early years of the HGP, the Wellcome Trust (U.K.) became a major partner; additional contributions came from Japan, France, Germany, China, and others. See our history page for more information. Project goals were to identify all the approximately 20,000-25,000 genes in human DNA, determine the sequences of the 3 billion chemical base pairs that make up human DNA, store this information in databases, improve tools for data analysis, transfer related technologies to the private sector, and address the ethical, legal, and social issues (ELSI) that may arise from the project. Though the HGP is finished, analyses of the data will continue for many years. Follow this ongoing research on our Progress page. ... [Information of the supplier]
DDBJ (DNA Data Bank of Japan) began DNA data bank activities in earnest in 1986 at the National Institute of Genetics (NIG). From the beginning, DDBJ has been functioning as one of the International DNA Databases, including EBI in Europe and NCBI in the USA as the two other members. Consequently, we have been collaborating with the two data banks through exchanging data and information on Internet and by regularly holding two meetings, the International DNA Data Banks Advisory Meeting and the International DNA Data Banks Collaborative Meeting. DDBJ is the sole DNA data bank in Japan, which is officially certified to collect DNA sequences from researchers and to issue the internationally recognized accession number to data submitters. We collect data mainly from Japanese researchers, but of course accept data and issue the accession number to researchers in any other countries. Since we exchange the collected data with EMBL/EBI and GenBank/NCBI on a daily basis, the three data banks share virtually the same data at any given time. We also provide worldwide many tools for data retrieval and analysis developed by at DDBJ and others. ... [Information of the supplier]
A database is a model of a piece of the world. RegulonDB in this sense is a model of the complex regulation of transcription initiation or regulatory network of the cell, on the one hand. On the other hand, it is also a model of the organization of the genes in transcription units, operons and simple and complex regulons. In this sense, RegulonDB is a computational model of mechanisms of transcriptional regulation. ... [Information of the supplier]
Cyanobacteria carry a complete set of genes for oxygenic photosynthesis, which is the most fundamental life process on the earth. This organism is also interesting from an evolutional viewpoint, for it was born in a very ancient age and has survived in various environments. Chloroplast is believed to have evolved from cyanobacterial ancestors which developed an endosymbiontic relationship with a eukaryotic host cell. CyanoBase provides an easy way of accessing the sequences and all-inclusive annotation data on the structures of the cyanobacterial genomes. ... [Information of the supplier]
